Substituting eggs & oil!

I recently made brownies where I used a box of brownie mix and instead of using any eggs and oil, I used a banana that I purred in my magic bullet with some no-sugar added apple sauce. When combined I added it to my mixture, added in another 1/2c apple sauce and put in 2 tbsp of water and mixed. I made my brownies in cupcake pans to make serving size and it was delicious. Very moist, VERY chocolatey with a slight hint of banana in the background!